CN207508727U - A kind of flexibly positioned fixture suitable for cover parts processing - Google Patents
A kind of flexibly positioned fixture suitable for cover parts processing Download PDFInfo
- Publication number
- CN207508727U CN207508727U CN201721351748.1U CN201721351748U CN207508727U CN 207508727 U CN207508727 U CN 207508727U CN 201721351748 U CN201721351748 U CN 201721351748U CN 207508727 U CN207508727 U CN 207508727U
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- CN
- China
- Prior art keywords
- resilient sleeve
- tapered shaft
- nut
- conical surface
- cover parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a kind of flexibly positioned fixture suitable for cover parts processing, including resilient sleeve, tapered shaft, nut, positioning seat, cylinder roller bearing；The resilient sleeve includes at least four radial direction deformation structures, and deformation structure is uniformly distributed in a concentric circumferences fills one entirety of Adhesion formation, and the resilient sleeve has up-narrow and down-wide inner conical surface by elastic rubber；One end of tapered shaft is fixed on lathe and with support plate, the other end is external thread structure, and middle portion is divided into the male cone (strobilus masculinus) coordinated with resilient sleeve inner conical surface；Positioning seat radial symmetric in the support plate of tapered shaft；The resilient sleeve is adjustably mounted on tapered shaft by the way that nut is axial, and the internal thread of the nut is matched with the external screw thread of tapered shaft upper end；It tightens pressure caused by nut and resilient sleeve is passed to by cylinder roller bearing, resilient sleeve is made to be moved axially along the tapered shaft and generate radial deformation, realize the clamping to cover parts, the clamping and positioning precision of positioning fixture is high.
Description
Technical field
The utility model is related to technical fields of mechanical processing more particularly to a kind of elasticity suitable for cover parts processing to determine
Position fixture.
Background technology
Resilient sleeve used in flexibly positioned fixture in the market is mostly that full elastic rubber material is process, and is being determined
It is mainly realized when position clamps by resilient sleeve flexible deformation in itself；And to resilient sleeve apply axial pressing force when
It waits, clamp nut is in direct contact with resilient sleeve, and resilient sleeve can generate torsional deflection, positioning accurate with the turning moment that nut applies
Degree can be lengthened with usage time and be reduced.
Utility model content
The purpose of this utility model is to provide a kind of flexibly positioned fixture for being suitable for processing cover parts, on overcoming
Defect is stated, realizes the high accuracy positioning clamping to part.
To achieve the above object, the utility model provides a kind of flexibly positioned fixture suitable for cover parts processing,
Including resilient sleeve, tapered shaft, axially position seat, nut, cylindrical roller thrust bearing；The resilient sleeve includes at least four radial directions
Deformation structure；The radial direction deformation structure is uniformly distributed in a concentric circumferences, by elastic rubber filling one tool of Adhesion formation
There is the cylindrical entirety of up-narrow and down-wide inner conical surface；Described tapered shaft one end is another for being fixed on lathe and carrying support plate
It holds as external screw thread, middle part is the male cone (strobilus masculinus) coordinated with the inner conical surface of the resilient sleeve；The axially position seat radial symmetric passes through
The mode of threaded connection is mounted on the axially position that parts to be processed is used in the tapered shaft support plate；The interior spiral shell of the nut
Line is matched with the external screw thread of tapered shaft upper end；The cylindrical roller thrust bearing be mounted on the nut and the resilient sleeve it
Between.
At least four radial direction deformation structures are uniformly sticked together to form one with smooth by resilient sleeve by elastic rubber
The entirety of inner conical surface, the inner conical surface of the resilient sleeve are adapted to the male cone (strobilus masculinus) high-precision in the middle part of the tapered shaft；When in resilient sleeve
When circular conical surface upper surface is by thrust, resilient sleeve can be axially moved along tapered shaft, during the motion, the elastic rubber in resilient sleeve
The glue power that is squeezed deforms, and resilient sleeve is made to generate uniform radial direction deformation, resilient sleeve cylinder outer diameter increase, so as to reach folder
The purpose of tight cover parts.
Preferably, the inner conical surface upper end of the resilient sleeve is higher than the male cone (strobilus masculinus) coordinated on the tapered shaft with the inner conical surface
Upper end, the distance between this difference for the resilient sleeve after being under pressure along the moveable stroke space of the tapered shaft；It is described
Resilient sleeve moves required pressure and is allowed to move down application along the tapered shaft external screw thread by screwing the nut.
Because the resilient sleeve and tapered shaft are coordinated by same conical surface of shaft high-precision, ensure that the deformation of resilient sleeve is uniform, and
By controlling the difference in height between the inner conical surface upper surface and male cone (strobilus masculinus) lower face, the deformation range of controllable resilient sleeve, from
And it avoids the excessive deformation of resilient sleeve and fails.
Preferably, for outer six side and with internal thread, middle part is tubulose for the nut upper end, and lower end is more than central tube for outer diameter
Shape outer diameter, internal diameter are presented a theatrical performance as the last item on a programme with the equirotal circle of central tubular internal diameter.
Preferably, the lower face that the cylinder is presented a theatrical performance as the last item on a programme passes through cylindrical roller thrust bearing and the resilient sleeve interior annular groove
Lower face contact, can be more easily by the pressure transmission that tightening nut generates to elasticity by cylindrical roller thrust bearing
On the upper surface for covering internal conical surface.
The utility model achieves following effect relative to the prior art：
1st, resilient sleeve is the overall structure that at least four radial direction deformation structures are formed by elastic rubber adhesion, is compared
In the resilient sleeve of full elastic rubber material, there is better fatigue strength, improve the service life of fixture.
2nd, it tightens thrust caused by nut and passes to resilient sleeve through cylinder roller bearing, avoid nut direct with resilient sleeve
Face contacts, and maximumlly reduces the torque that resilient sleeve is passed to when tightening nut, reduces the torsional deflection of resilient sleeve, so as to carry
The positioning accuracy and service life of high fixture.
Description of the drawings
It, below will be to use required in embodiment for the clearer technical solution for illustrating the utility model embodiment
Attached drawing be briefly described, it is clear that, drawings discussed below is only some embodiments of the utility model, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the complete section front view of the flexibly positioned fixture for being suitable for cover parts processing of the utility model.
Fig. 2 is the vertical view of the resilient sleeve of the flexibly positioned fixture for being suitable for cover parts processing of the utility model.
Fig. 3 is the sectional view of the resilient sleeve of the flexibly positioned fixture for being suitable for cover parts processing of the utility model.
In figure：1- resilient sleeves, 2- tapered shafts, 3- nuts, 4- positioning seats, 5- cylinder roller bearings, 6- parts to be processed, 7-
Radial direction deformation mechanism, 8- elastic rubbers.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
Fig. 1 is the complete section front view of the flexibly positioned fixture for being suitable for cover parts processing of the utility model, such as Fig. 2 institutes
Show, the flexibly positioned fixture includes resilient sleeve 1, tapered shaft 2, nut 3, positioning seat 4, cylinder roller bearing 5, parts to be processed
6th, radial direction deformation mechanism 7, elastic rubber 8；
The vertical view of Fig. 2 resilient sleeves 1 includes four radial direction deformation structures 7；Radial direction deformation structure 7 is in a concentric circumferences
It is uniformly distributed, resilient sleeve 1 is formed by the filling bonding of elastic rubber 8.As shown in figure 3, can be seen that in the section view of resilient sleeve 1,
There is one section of via in the inside of resilient sleeve there are one up-narrow and down-wide internal conical surface above internal conical surface, be a ring above via
Also there are one section of via identical with via size above inner conical surface in shape slot, the top of annular groove；The outside of resilient sleeve 1 is a circle
Cylindricality is whole.
2 one end of tapered shaft is for being fixed on lathe and with support plate, and other end top half is external screw thread, lower half
It is divided into polished rod structure, middle part is high-precision male cone (strobilus masculinus)；Positioning seat 4 is connected through a screw thread the support for being symmetrically mounted on tapered shaft 2
On disk.
3 upper end of nut is for outer six side and with internal thread, and middle part is tubulose, and lower end is more than central tubular outer diameter for outer diameter, interior
Diameter is presented a theatrical performance as the last item on a programme with the equirotal circle of central tubular internal diameter.
It is assembling base with tapered shaft 2 during the flexibly positioned fixture assembling for being suitable for cover parts processing of the utility model
Positioning seat 4 is first mounted in the support plate of tapered shaft 2 by standard；Cylinder roller bearing 5 is mounted in the polished rod of 3 upper end of tapered shaft again
On structure division；Then nut 3 is mounted on the external screw thread of 2 upper end of tapered shaft again, can not tightened at this time；Again by four radial directions
Deformation structure 7 is uniformly arranged in centered on the central shaft of tapered shaft 3 on the male cone (strobilus masculinus) in 2 stage casing of tapered shaft, according to actually making
With requiring, when arranging four radial direction deformation structures 7, the upper surface of the inner conical surface formed need to be higher by the male cone (strobilus masculinus) of tapered shaft 2
Upper surface a distance, and need to will before mounted on the cylinder roller bearing of 2 smooth bar part of tapered shaft with mounted on tapered shaft
The circle of 3 lower part of nut on the external screw thread of upper end, which is presented a theatrical performance as the last item on a programme, is included in the annular groove that four combinations of radial direction deformation mechanism 7 are formed
It is interior.Behind the position for adjusting four radial direction deformation structures 7 and its concentricity with tapered shaft 2, elastic rubber 8 is uniformly tamped
The uniformly distributed gap being filled between four radial direction deformation mechanisms in, make its adhesion cylindrical whole into one, formed complete
Resilient sleeve 1.
As can be seen from Figure 1, after the completion of the assembling of flexibly positioned fixture, the upper surface of 1 inner conical surface of resilient sleeve is higher than tapered shaft 2
Upper surface a distance of male cone (strobilus masculinus), which is the axially movable space of resilient sleeve 1, by controlling the size of the distance,
The radial deformation of controllable resilient sleeve 1.
During using flexibly positioned fixture, first resilient sleeve 1 is passed through to be mounted on positioning seat 4 parts to be processed 6, positioning seat 4
Height and verticality are waited with high, when parts to be processed 6 is placed on it, it is ensured that part 6 is coaxial with tapered shaft 2
Degree；After installation is complete for parts to be processed 6, nut 3 is tightened, presents a theatrical performance as the last item on a programme because of the circle of 3 lower part of nut and is connect with cylinder roller bearing 5
It touches, cylinder roller bearing 5 contacts again with the lower face of the annular groove in resilient sleeve 1, and the screwing force of nut 3 is made to pass through cylindrical roller
Bearing 5 passes to resilient sleeve 1, resilient sleeve 1 is made to be axially moved along the male cone (strobilus masculinus) of tapered shaft 2, elasticity during movement in resilient sleeve 1
Rubber 8 can deform, and resilient sleeve 1 can generate radial direction deformation, tight with the inner wall of parts to be processed 6 so as to increase its outer diameter
It is close to, so as to achieve the effect that clamp parts to be processed 6.
Because tapered shaft 2 and the component of resilient sleeve 1 are all through being process in high precision, having higher concentricity and surface essence
Degree, therefore this flexibly positioned fixture has higher positioning accuracy.
The utility model applies specific case and the principle and embodiment of the utility model is expounded, more than it is real
The explanation for applying example is merely used to help understand the method and its core concept of the utility model；Meanwhile for the general of this field
Technical staff, according to the thought of the utility model, in specific embodiments and applications there will be changes.To sum up,
The content of the present specification should not be construed as a limitation of the present invention.
Claims (4)
1. a kind of flexibly positioned fixture suitable for cover parts processing, it is characterised in that：Including resilient sleeve, tapered shaft, axial direction
Positioning seat, nut, cylindrical roller thrust bearing；The resilient sleeve includes at least four radial direction deformation structures；The radial direction deformation
Structure is uniformly distributed in a concentric circumferences；The radial direction deformation structure by elastic rubber filling bonding into one have it is upper it is narrow under
Wide inner conical surface is cylindrical whole；For being fixed on lathe and carrying support plate, the other end is outer spiral shell for described tapered shaft one end
Line, middle part are the male cone (strobilus masculinus) coordinated with the inner conical surface of the resilient sleeve；Two axially position seat radial symmetrics are mounted on institute
It states in tapered shaft support plate；The internal thread of the nut is matched with the external screw thread of tapered shaft upper end；The cylindrical roller thrust
Bearing is mounted between the nut and the resilient sleeve.
2. a kind of flexibly positioned fixture suitable for cover parts processing according to claim 1, it is characterised in that：It is described
The inner conical surface upper end of resilient sleeve is higher than the upper end with the male cone (strobilus masculinus) of inner conical surface cooperation on the tapered shaft, the distance between this difference
The stroke space moved after by thrust along the tapered shaft for the resilient sleeve.
3. a kind of flexibly positioned fixture suitable for cover parts processing according to claim 1 or 2, it is characterised in that：
For outer six side and with internal thread, middle part is tubulose for the nut upper end, and lower end is more than central tubular outer diameter for outer diameter, and internal diameter is in
Tubular internal diameters equirotal circle in portion's is presented a theatrical performance as the last item on a programme.
4. a kind of flexibly positioned fixture suitable for cover parts processing according to claim 3, it is characterised in that：It is described
The lower face that circle is presented a theatrical performance as the last item on a programme is contacted by cylindrical roller thrust bearing with the upper surface of the resilient sleeve inner conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721351748.1U CN207508727U (en) | 2017-10-19 | 2017-10-19 | A kind of flexibly positioned fixture suitable for cover parts processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721351748.1U CN207508727U (en) | 2017-10-19 | 2017-10-19 | A kind of flexibly positioned fixture suitable for cover parts processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207508727U true CN207508727U (en) | 2018-06-19 |
Family
ID=62534792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721351748.1U Expired - Fee Related CN207508727U (en) | 2017-10-19 | 2017-10-19 | A kind of flexibly positioned fixture suitable for cover parts processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207508727U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655749A (en) * | 2018-07-20 | 2018-10-16 | 无锡市万向联轴器有限公司 | Grinding fixture is bored in bearing block milling |
| CN110595394A (en) * | 2019-09-30 | 2019-12-20 | 天津大学 | Gapless polyhedral prism mounting structure based on expansion |
| CN110985489A (en) * | 2019-12-20 | 2020-04-10 | 北京空天技术研究所 | Connection structure and connection system |
-
2017
- 2017-10-19 CN CN201721351748.1U patent/CN207508727U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655749A (en) * | 2018-07-20 | 2018-10-16 | 无锡市万向联轴器有限公司 | Grinding fixture is bored in bearing block milling |
| CN110595394A (en) * | 2019-09-30 | 2019-12-20 | 天津大学 | Gapless polyhedral prism mounting structure based on expansion |
| CN110985489A (en) * | 2019-12-20 | 2020-04-10 | 北京空天技术研究所 | Connection structure and connection system |
| CN110985489B (en) * | 2019-12-20 | 2021-09-14 | 北京空天技术研究所 | Connection structure and connection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180619 Termination date: 20181019 |